Nearby words

  1. duplex process,
  2. duplex pump,
  3. duplex uterus,
  4. duplexer,
  5. duplicable,
  6. duplicate bridge,
  7. duplicating machine,
  8. duplication,
  9. duplication of chromosomes,
  10. duplication of the cube


    in duplicate, in two copies, especially two identical copies: Please type the letter in duplicate.

Origin of duplicate

1400–50; late Middle English < Latin duplicātus (past participle of duplicāre to make double), equivalent to duplic- (stem of duplex) duplex + -ātus -ate1

Related forms Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for duplicate

British Dictionary definitions for duplicate


adjective (ˈdjuːplɪkɪt)

copied exactly from an original
existing as a pair or in pairs; twofold

noun (ˈdjuːplɪkɪt)

an exact copy; double
something additional or supplementary of the same kind
two exact copies (esp in the phrase in duplicate)

verb (ˈdjuːplɪˌkeɪt)

(tr) to make a replica of
(tr) to do or make again
(tr) to make in a pair; make double
(intr) biology to reproduce by dividing into two identical partsthe chromosomes duplicated in mitosis
Derived Formsduplicable (ˈdjuːplɪkəbəl), adjectiveduplicability, nounduplicately, adverbduplicative, adjective

Word Origin for duplicate

C15: from Latin duplicāre to double, from duo two + plicāre to fold

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for duplicate
Online Etymology Dictionary, © 2010 Douglas Harper